Number Bonds Worksheet

Fill in the missing numbers to complete each number bond. The two parts at the bottom add up to the whole number at the top.

4___1
16___9
43___
5___1
___51
___11
166___
13___12
83___
___88
___145
6___4
___135
12___3
1311___
1512___
___13
1413___
7___2
___14
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